DYNAMIC ENVELOPE

MARLIN provided design and construction oversight services to the Florida Department of Transportation to modify the dynamic envelope at the Commercial Boulevard grade crossing in Ft. Lauderdale. Specifically,MARLIN updated pavement markings within the dynamic envelope and corresponding signage at the Commercial Boulevard grade crossing. The purpose of the project was to reduce crossings accidents at railroad crossings and satisfy the Federal Railroad Administration’s call for Florida to reduce these crossing accidents. MARLIN accepted this challenge by conceiving,designing and implementing the first in the nation pavement markings to enhance safety at the Commercial Boulevard crossing in District 4. This unique approach provide enhanced pavement markings and signage MARLIN provided planning, contract management, coordination, and CEI services for the project.

CLIENT

Florida Department of Transportation

WHAT WE DID

Rail Planning, Contract Management, Coordination, and CEI

Project Outcome

MARLIN coordinated with the FRA’s Volpe Center in the collection of data before and after the installation of the pavement markings and corresponding signage and the research indicates the installations resulted in a 45% decrease in the number of eastbound vehicles that stopped on the railroad tracks and a 14% decrease for westbound vehicles. Marlin also did the same services for three more applications in the District 4 region and results show these installations are effective at increasing safe driver behavior.

Dynamic Envelope
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